Infrared radiant emitter
OwnerJames William Masten, Jr.inventor
Life of this patent
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Abstract
An infrared heating apparatus includes a sheet of ceramic glass having a passband in the infrared spectrum, a metal resistive element having a first portion that is covered by a ceramic refractory material and a second portion that is exposed by the ceramic refractory material, and a controller that controls the metal resistive element to emit infrared radiation in a wavelength corresponding to the passband of the ceramic glass.
Claims18
An infrared heating apparatus comprising:
- a sheet of ceramic glass having a passband in the infrared spectrum;
- a metal resistive element having a first portion that is covered by a ceramic refractory material and a second portion that is exposed by the ceramic refractory material;
- and
- a controller that controls the metal resistive element to emit infrared radiation in a wavelength corresponding to the passband of the ceramic glass,
- wherein the metal resistive element is a coil, and at least a portion of the ceramic refractory material is disposed within a central void of the coil.
A method of heating an object using infrared energy, the method comprising:
- heating a metal resistive element that is partially embedded in a ceramic refractory material to emit infrared energy having a first wavelength;
- and
- passing the infrared energy having the first wavelength through a sheet of ceramic glass that has a passband corresponding to the first wavelength,
- wherein the metal resistive element is heated to a temperature above 800° C.
An infrared heating apparatus comprising:
- a sheet of ceramic glass having a passband in the infrared spectrum;
- a metal resistive element having a first portion that is covered by a ceramic refractory material and a second portion that is exposed by the ceramic refractory material;
- and
- a controller that controls the metal resistive element to emit infrared radiation in a wavelength corresponding to the passband of the ceramic glass,
- wherein the controller is configured to heat the metal resistive element to a temperature above 800° C.
A method of heating an object using infrared energy, the method comprising:
- heating a metal resistive element that is partially embedded in a ceramic refractory material to emit infrared energy having a first wavelength;
- and
- passing the infrared energy having the first wavelength through a sheet of ceramic glass that has a passband corresponding to the first wavelength,
- wherein the metal resistive element is heated to a temperature at which at least a portion of the metal is in a liquid phase.
Dependencies are inferred from the claim text.